BUG: handle Ellipsis in Series indexing close #1721

Author: wesm

RELEASE.rst

@@ -42,6 +42,7 @@ pandas 0.8.2
   - Fix MM-YYYY time series indexing case (#1672)
   - Fix case where Categorical group key was not being passed into index in
     GroupBy result (#1701)
+  - Handle Ellipsis in Series.__getitem__/__setitem__ (#1721)
 
 pandas 0.8.1
 ============

pandas/core/series.py

@@ -435,6 +435,8 @@ def __getitem__(self, key):
             if isinstance(key, tuple) and isinstance(self.index, MultiIndex):
                 # kludge
                 pass
+            elif key is Ellipsis:
+                return self
             else:
                 raise
         except Exception:
@@ -536,6 +538,9 @@ def __setitem__(self, key, value):
 
                 values[key] = value
                 return
+            elif key is Ellipsis:
+                self[:] = value
+                return
 
             raise KeyError('%s not in this series!' % str(key))
         except TypeError, e:

pandas/tests/test_series.py

@@ -89,6 +89,17 @@ def test_getitem_preserve_name(self):
         result = self.ts[5:10]
         self.assertEquals(result.name, self.ts.name)
 
+    def test_getitem_setitem_ellipsis(self):
+        s = Series(np.random.randn(10))
+
+        np.fix(s)
+
+        result = s[...]
+        assert_series_equal(result, s)
+
+        s[...] = 5
+        self.assert_((result == 5).all())
+
     def test_multilevel_name_print(self):
         index = MultiIndex(levels=[['foo', 'bar', 'baz', 'qux'],
                                    ['one', 'two', 'three']],